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Submission #914259

# Submission time Handle Problem Language Result Execution time Memory
914259 2024-01-21T13:07:50 Z Abito Joker (BOI20_joker) C++14
14 / 100
 2000 ms 17396 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
//#define int long long
#define ll long long
#define y1 YONE
#define free freeee
#define lcm llcm
/*
⠄⠄⠄⠄⢠⣿⣿⣿⣿⣿⢻⣿⣿⣿⣿⣿⣿⣿⣿⣯⢻⣿⣿⣿⣿⣆⠄⠄⠄
⠄⠄⣼⢀⣿⣿⣿⣿⣏⡏⠄⠹⣿⣿⣿⣿⣿⣿⣿⣿⣧⢻⣿⣿⣿⣿⡆⠄⠄
⠄⠄⡟⣼⣿⣿⣿⣿⣿⠄⠄⠄⠈⠻⣿⣿⣿⣿⣿⣿⣿⣇⢻⣿⣿⣿⣿⠄⠄
⠄⢰⠃⣿⣿⠿⣿⣿⣿⠄⠄⠄⠄⠄⠄⠙⠿⣿⣿⣿⣿⣿⠄⢿⣿⣿⣿⡄⠄
⠄⢸⢠⣿⣿⣧⡙⣿⣿⡆⠄⠄⠄⠄⠄⠄⠄⠈⠛⢿⣿⣿⡇⠸⣿⡿⣸⡇⠄
⠄⠈⡆⣿⣿⣿⣿⣦⡙⠳⠄⠄⠄⠄⠄⠄⢀⣠⣤⣀⣈⠙⠃⠄⠿⢇⣿⡇⠄
⠄⠄⡇⢿⣿⣿⣿⣿⡇⠄⠄⠄⠄⠄⣠⣶⣿⣿⣿⣿⣿⣿⣷⣆⡀⣼⣿⡇⠄
⠄⠄⢹⡘⣿⣿⣿⢿⣷⡀⠄⢀⣴⣾⣟⠉⠉⠉⠉⣽⣿⣿⣿⣿⠇⢹⣿⠃⠄
⠄⠄⠄⢷⡘⢿⣿⣎⢻⣷⠰⣿⣿⣿⣿⣦⣀⣀⣴⣿⣿⣿⠟⢫⡾⢸⡟⠄.
⠄⠄⠄⠄⠻⣦⡙⠿⣧⠙⢷⠙⠻⠿⢿⡿⠿⠿⠛⠋⠉⠄⠂⠘⠁⠞⠄⠄⠄
⠄⠄⠄⠄⠄⠈⠙⠑⣠⣤⣴⡖⠄⠿⣋⣉⣉⡁⠄⢾⣦⠄⠄⠄⠄⠄⠄⠄⠄
*/
typedef unsigned long long ull;
using namespace std;
const int N=1e5+5;
int n,m,q,tin[N],t,l,r;
vector<pair<int,int>> adj[N];
bool cyc,vis[N];
void dfs(int x,int p){
    vis[x]=1;
    tin[x]=++t;
    for (auto u:adj[x]){
        if (u.F==p || (u.S>=l && u.S<=r)) continue;
        if (vis[u.F]) cyc|=((tin[x]-tin[u.F]+1)&1);
        else dfs(u.F,x);
        if (cyc) break;
    }t--;
    return;
}
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n>>m>>q;
    for (int i=1;i<=m;i++){
        int x,y;
        cin>>x>>y;
        adj[x].pb({y,i});
        adj[y].pb({x,i});
    }
    while (q--){
        cin>>l>>r;
        memset(vis,0,sizeof(vis));cyc=0;
        for (int i=1;i<=n;i++){
            if (vis[i]) continue;
            dfs(i,0);
            if (cyc) break;
        }
        if (cyc) cout<<"YES"<<endl;
        else cout<<"NO"<<endl;
    }
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2816 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2912 KB Output is correct
7 Correct 2 ms 2908 KB Output is correct
8 Correct 2 ms 2908 KB Output is correct
9 Correct 1 ms 2904 KB Output is correct
10 Correct 2 ms 2904 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 2916 KB Output is correct
14 Correct 2 ms 2908 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2812 KB Output is correct
17 Correct 1 ms 2712 KB Output is correct
18 Correct 2 ms 2912 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 2 ms 2904 KB Output is correct
26 Correct 1 ms 2904 KB Output is correct
27 Correct 1 ms 2812 KB Output is correct
28 Correct 1 ms 2820 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2816 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2912 KB Output is correct
7 Correct 2 ms 2908 KB Output is correct
8 Correct 2 ms 2908 KB Output is correct
9 Correct 1 ms 2904 KB Output is correct
10 Correct 2 ms 2904 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 2916 KB Output is correct
14 Correct 2 ms 2908 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2812 KB Output is correct
17 Correct 1 ms 2712 KB Output is correct
18 Correct 2 ms 2912 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 2 ms 2904 KB Output is correct
26 Correct 1 ms 2904 KB Output is correct
27 Correct 1 ms 2812 KB Output is correct
28 Correct 1 ms 2820 KB Output is correct
29 Correct 56 ms 2908 KB Output is correct
30 Correct 41 ms 2904 KB Output is correct
31 Correct 31 ms 3036 KB Output is correct
32 Correct 16 ms 2904 KB Output is correct
33 Correct 8 ms 2908 KB Output is correct
34 Correct 29 ms 2904 KB Output is correct
35 Correct 46 ms 2908 KB Output is correct
36 Correct 15 ms 2908 KB Output is correct
37 Correct 51 ms 2904 KB Output is correct
38 Correct 50 ms 2908 KB Output is correct
39 Correct 42 ms 3008 KB Output is correct
40 Correct 18 ms 2908 KB Output is correct
41 Correct 18 ms 2908 KB Output is correct
42 Correct 18 ms 2908 KB Output is correct
43 Correct 7 ms 2828 KB Output is correct
44 Correct 6 ms 2904 KB Output is correct
45 Correct 9 ms 2908 KB Output is correct
46 Correct 12 ms 2904 KB Output is correct
47 Correct 19 ms 2904 KB Output is correct
48 Correct 22 ms 2908 KB Output is correct
49 Correct 29 ms 2824 KB Output is correct
50 Correct 40 ms 3008 KB Output is correct
51 Correct 21 ms 2904 KB Output is correct
52 Correct 24 ms 2908 KB Output is correct
53 Correct 31 ms 3040 KB Output is correct
54 Correct 44 ms 2908 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Execution timed out 2063 ms 15876 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2816 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2912 KB Output is correct
7 Correct 2 ms 2908 KB Output is correct
8 Correct 2 ms 2908 KB Output is correct
9 Correct 1 ms 2904 KB Output is correct
10 Correct 2 ms 2904 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 2916 KB Output is correct
14 Correct 2 ms 2908 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2812 KB Output is correct
17 Correct 1 ms 2712 KB Output is correct
18 Correct 2 ms 2912 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 2 ms 2904 KB Output is correct
26 Correct 1 ms 2904 KB Output is correct
27 Correct 1 ms 2812 KB Output is correct
28 Correct 1 ms 2820 KB Output is correct
29 Execution timed out 2063 ms 15876 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2816 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2912 KB Output is correct
7 Correct 2 ms 2908 KB Output is correct
8 Correct 2 ms 2908 KB Output is correct
9 Correct 1 ms 2904 KB Output is correct
10 Correct 2 ms 2904 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 2916 KB Output is correct
14 Correct 2 ms 2908 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2812 KB Output is correct
17 Correct 1 ms 2712 KB Output is correct
18 Correct 2 ms 2912 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 2 ms 2904 KB Output is correct
26 Correct 1 ms 2904 KB Output is correct
27 Correct 1 ms 2812 KB Output is correct
28 Correct 1 ms 2820 KB Output is correct
29 Correct 56 ms 2908 KB Output is correct
30 Correct 41 ms 2904 KB Output is correct
31 Correct 31 ms 3036 KB Output is correct
32 Correct 16 ms 2904 KB Output is correct
33 Correct 8 ms 2908 KB Output is correct
34 Correct 29 ms 2904 KB Output is correct
35 Correct 46 ms 2908 KB Output is correct
36 Correct 15 ms 2908 KB Output is correct
37 Correct 51 ms 2904 KB Output is correct
38 Correct 50 ms 2908 KB Output is correct
39 Correct 42 ms 3008 KB Output is correct
40 Correct 18 ms 2908 KB Output is correct
41 Correct 18 ms 2908 KB Output is correct
42 Correct 18 ms 2908 KB Output is correct
43 Correct 7 ms 2828 KB Output is correct
44 Correct 6 ms 2904 KB Output is correct
45 Correct 9 ms 2908 KB Output is correct
46 Correct 12 ms 2904 KB Output is correct
47 Correct 19 ms 2904 KB Output is correct
48 Correct 22 ms 2908 KB Output is correct
49 Correct 29 ms 2824 KB Output is correct
50 Correct 40 ms 3008 KB Output is correct
51 Correct 21 ms 2904 KB Output is correct
52 Correct 24 ms 2908 KB Output is correct
53 Correct 31 ms 3040 KB Output is correct
54 Correct 44 ms 2908 KB Output is correct
55 Execution timed out 2021 ms 17396 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2816 KB Output is correct
5 Correct 1 ms 2908 KB Output is correct
6 Correct 1 ms 2912 KB Output is correct
7 Correct 2 ms 2908 KB Output is correct
8 Correct 2 ms 2908 KB Output is correct
9 Correct 1 ms 2904 KB Output is correct
10 Correct 2 ms 2904 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 2916 KB Output is correct
14 Correct 2 ms 2908 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2812 KB Output is correct
17 Correct 1 ms 2712 KB Output is correct
18 Correct 2 ms 2912 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 2 ms 2904 KB Output is correct
26 Correct 1 ms 2904 KB Output is correct
27 Correct 1 ms 2812 KB Output is correct
28 Correct 1 ms 2820 KB Output is correct
29 Correct 56 ms 2908 KB Output is correct
30 Correct 41 ms 2904 KB Output is correct
31 Correct 31 ms 3036 KB Output is correct
32 Correct 16 ms 2904 KB Output is correct
33 Correct 8 ms 2908 KB Output is correct
34 Correct 29 ms 2904 KB Output is correct
35 Correct 46 ms 2908 KB Output is correct
36 Correct 15 ms 2908 KB Output is correct
37 Correct 51 ms 2904 KB Output is correct
38 Correct 50 ms 2908 KB Output is correct
39 Correct 42 ms 3008 KB Output is correct
40 Correct 18 ms 2908 KB Output is correct
41 Correct 18 ms 2908 KB Output is correct
42 Correct 18 ms 2908 KB Output is correct
43 Correct 7 ms 2828 KB Output is correct
44 Correct 6 ms 2904 KB Output is correct
45 Correct 9 ms 2908 KB Output is correct
46 Correct 12 ms 2904 KB Output is correct
47 Correct 19 ms 2904 KB Output is correct
48 Correct 22 ms 2908 KB Output is correct
49 Correct 29 ms 2824 KB Output is correct
50 Correct 40 ms 3008 KB Output is correct
51 Correct 21 ms 2904 KB Output is correct
52 Correct 24 ms 2908 KB Output is correct
53 Correct 31 ms 3040 KB Output is correct
54 Correct 44 ms 2908 KB Output is correct
55 Execution timed out 2063 ms 15876 KB Time limit exceeded
56 Halted 0 ms 0 KB -